Actually a fun fact there, they’re both owned by different Aldis.
[Aldi] was split into two separate groups in 1960 that later became Aldi Nord (initially Northern West Germany), headquartered in Essen, and Aldi Süd (initially Southern West Germany), headquartered in neighbouring Mülheim
The brothers split the company in 1960, reportedly over a dispute about whether they should sell cigarettes. Karl believed they would attract shoplifters, while his brother, Theo, did not. This led to Theo running Aldi Nord and Karl running Aldi Süd.[22]
in 1976, Aldi Süd opened its first store in the United States in Iowa,[a][29][30] and, in 1979, Aldi Nord acquired Trader Joe’s.[19]
Actually a fun fact there, they’re both owned by different Aldis.
https://en.m.wikipedia.org/wiki/Aldi